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    • 5. 发明授权
    • Absolute tracking in a sub-pixel range
    • 子像素范围内的绝对跟踪
    • US08315434B2
    • 2012-11-20
    • US12349052
    • 2009-01-06
    • Teng Hun LimMeng Whui Tan
    • Teng Hun LimMeng Whui Tan
    • G06K9/00
    • G06T7/20G01S17/023G01S17/66G01S17/89G01S19/48G06F3/0317H04N5/145
    • An optical navigation device for absolute tracking in a sub-pixel range. The optical navigation device includes an image sensor and a tracking engine. The image sensor includes a pixel array to generate a plurality of tracking images. The tracking images correspond to incident light at the pixel array. The tracking engine determines a sub-pixel displacement value of a tracking surface based on a comparison of at least two of the tracking images. The tracking engine includes a sub-pixel approximation engine and a linear approximation engine. The sub-pixel approximation engine generates an intermediate sub-pixel displacement value based on a sub-pixel approximation according to a non-linear sub-pixel distribution. The linear approximation engine generates a final sub-pixel displacement value from the intermediate sub-pixel displacement value.
    • 一种用于子像素范围内的绝对跟踪的光学导航装置。 光学导航装置包括图像传感器和跟踪引擎。 图像传感器包括用于生成多个跟踪图像的像素阵列。 跟踪图像对应于像素阵列处的入射光。 跟踪引擎基于至少两个跟踪图像的比较来确定跟踪表面的子像素位移值。 跟踪引擎包括子像素近似引擎和线性近似引擎。 子像素近似引擎根据非线性子像素分布基于子像素近似生成中间子像素位移值。 线性近似引擎从中间子像素位移值生成最终子像素位移值。
    • 7. 发明申请
    • ABSOLUTE TRACKING IN A SUB-PIXEL RANGE
    • 子像素范围内的绝对跟踪
    • US20100172545A1
    • 2010-07-08
    • US12349052
    • 2009-01-06
    • Teng Hun LimMeng Whui Tan
    • Teng Hun LimMeng Whui Tan
    • G06K9/00
    • G06T7/20G01S17/023G01S17/66G01S17/89G01S19/48G06F3/0317H04N5/145
    • An optical navigation device for absolute tracking in a sub-pixel range. The optical navigation device includes an image sensor and a tracking engine. The image sensor includes a pixel array to generate a plurality of tracking images. The tracking images correspond to incident light at the pixel array. The tracking engine determines a sub-pixel displacement value of a tracking surface based on a comparison of at least two of the tracking images. The tracking engine includes a sub-pixel approximation engine and a linear approximation engine. The sub-pixel approximation engine generates an intermediate sub-pixel displacement value based on a sub-pixel approximation according to a non-linear sub-pixel distribution. The linear approximation engine generates a final sub-pixel displacement value from the intermediate sub-pixel displacement value.
    • 一种用于子像素范围内的绝对跟踪的光学导航装置。 光学导航装置包括图像传感器和跟踪引擎。 图像传感器包括用于生成多个跟踪图像的像素阵列。 跟踪图像对应于像素阵列处的入射光。 跟踪引擎基于至少两个跟踪图像的比较来确定跟踪表面的子像素位移值。 跟踪引擎包括子像素近似引擎和线性近似引擎。 子像素近似引擎根据非线性子像素分布基于子像素近似生成中间子像素位移值。 线性近似引擎从中间子像素位移值生成最终子像素位移值。